Introduction
BMW’s M division has long been associated with precision engineering, motorsport heritage, and driving thrill. While many car lovers know the M3, M4, or M5, few realize that BMW has produced some incredibly rare M cars that are nearly impossible to find today. These are machines built in small numbers, often for homologation or special purposes, and each tells a unique story.
In this article, we explore seven of the rarest BMW M cars ever made.
1. BMW M3 CRT – Lightweight Performance Sedan
The M3 CRT (Carbon Racing Technology) is one of the most exclusive sedans BMW ever produced.
It was based on the E90 M3 but took inspiration from the M3 GTS.
Moreover, it used carbon fiber extensively in the hood, seats, and other components.
- Engine: 4.4L V8
- Horsepower: 450 hp
- Production: Only 67 units
It was never offered in the U.S., adding to its mystique and value.
2. BMW M5 Touring (E34) – Practical Beast
The E34 M5 Touring combined family practicality with M5 performance.
Unlike modern M wagons, this one was hand-built and rare.
- Engine: 3.8L inline-six
- Horsepower: 340 hp
- Production: 891 units
It wasn’t available in North America, making it a hidden gem in M history.
3. BMW M3 GTR – Street-Legal Racecar
The M3 GTR was built to meet ALMS racing rules.
BMW had to build road-legal versions, and they did—barely.
- Engine: 4.0L V8
- Horsepower: 450+ hp
- Production: 10 cars
Surprisingly, it’s more of a race car than a road car. Most units were sold to collectors immediately.
4. BMW M8 Prototype – The Forgotten V12 Monster
The original E31 8 Series almost had an M8 version. BMW developed it but kept it hidden for decades.
- Engine: 6.1L V12
- Horsepower: 550 hp
- Production: Only 1 prototype
Interestingly, it wasn’t shown to the public until 2010, after being stored for nearly 20 years.
5. BMW M3 Evolution II (E30) – Homologation Hero
This version of the classic E30 M3 was made to qualify for Group A racing.
It featured aerodynamic upgrades and a tuned engine.
- Engine: 2.3L inline-4
- Horsepower: 220 hp
- Production: 500 units
In addition, it came in rare colors like Misano Red and had specific spoilers and bumpers.
6. BMW M635CSi – The Early M Coupe
Overshadowed by the M3 and M5, this E24-based coupe had the same engine as the BMW M1 supercar.
- Engine: 3.5L M88 inline-six
- Horsepower: 286 hp
- Production: Approx. 5,800 units
Even though it wasn’t labeled as an “M6” globally, it had the heart of a true M car.
7. BMW 1M Coupe – Instant Modern Classic
Built for just one model year, the 1M Coupe earned instant respect.
It was raw, rear-wheel-drive, and only came with a 6-speed manual.
- Engine: 3.0L twin-turbo inline-6
- Horsepower: 335 hp
- Production: 6,309 units
Because of its simplicity and aggression, it’s already a modern collector’s item.
Final Thoughts
These rare BMW M cars prove that BMW’s M division isn’t just about volume sellers.
Each of these models represents a special moment in M history—where performance met exclusivity.
Whether for homologation, limited production, or pure passion, they remain legends on four wheels.
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